/*
 * Sonatype Nexus (TM) Open Source Version
 * Copyright (c) 2008-present Sonatype, Inc.
 * All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
 *
 * This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
 * which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
 *
 * Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
 * of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
 * Eclipse Foundation. All other trademarks are the property of their respective owners.
 */
package org.sonatype.nexus.common.stateguard;

import java.util.Arrays;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Runtime exception thrown when {@link StateGuard} check fails.
 *
 * @since 3.2.1
 */
public class InvalidStateException
    extends IllegalStateException
{
  private final String invalidState;

  public InvalidStateException(final String invalidState, final String[] allowedStates) {
    super("Invalid state: " + invalidState + "; allowed: " + Arrays.toString(allowedStates));
    this.invalidState = checkNotNull(invalidState);
  }

  public String getInvalidState() {
    return invalidState;
  }
}
